The majority of collectors choose the Period One coins on this great and historic series, covering the Breen/Gillio numbers of 101 through 607, plus the newly discovered varieties that will be listed in the upcoming second edition of Breen/Gillio and are already listed in The PCGS Population Report. These are the "true collectors" (or so some say) of the "fractional" gold coins from the early days of California statehood. Other collectors beg to differ, as you’ll find some extensive collections that encompass the Period Two coins with equal passion.